What is CVE-2023-49337?

CVE-2023-49337 is a low-severity vulnerability in Concretecms Concrete Cms, classified under Cross-site Scripting. CVSS score: 2.4/10. Published 2024-02-29.

How severe is CVE-2023-49337?

Low severity. CVSS v3 base score is 2.4 out of 10.

XSS in Concretecms Concrete Cms

CVE-2023-49337

Concrete CMS before 9.2.3 allows Stored XSS on the Admin Dashboard via /dashboard/system/basics/name. (8.5 and earlier are unaffected.)

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-02-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (43.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Concretecms Concrete Cms

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

hackerone.com/reports/2232594 (Permissions Required)
github.com/concretecms/concretecms/commit/07b433799b888c4eb854e052ca58b032ebc6d… (Patch)
www.concretecms.org/about/project-news/security/2023-12-05-concrete-cms-new-cve… (Vendor Advisory)

Frequently asked questions

What is CVE-2023-49337?: CVE-2023-49337 is a low-severity vulnerability in Concretecms Concrete Cms, classified under Cross-site Scripting. CVSS score: 2.4/10. Published 2024-02-29.
How severe is CVE-2023-49337?: Low severity. CVSS v3 base score is 2.4 out of 10.